Enter Infusion Details
Example Data Table
| Patient | Weight kg | Dextrose % | Rate mL/hr | Approx GIR | Comment |
|---|---|---|---|---|---|
| Neonate | 3 | 10 | 12 | 6.67 mg/kg/min | Common target range example |
| Pediatric | 10 | 5 | 40 | 3.33 mg/kg/min | Lower dextrose delivery |
| Adult | 70 | 5 | 125 | 1.49 mg/kg/min | Maintenance fluid example |
Formula Used
Dextrose mg/mL = Dextrose percentage × 10
GIR mg/kg/min = Dextrose mg/mL × Infusion rate mL/hr ÷ Weight kg ÷ 60
Dextrose grams/day = Dextrose percentage ÷ 100 × Daily volume mL
Dextrose calories/day = Dextrose grams/day × 3.4
mL/kg/day = Daily volume mL ÷ Weight kg
The reverse target rate is calculated from the selected GIR target, weight, and dextrose concentration.
How to Use This Calculator
- Select the patient group for documentation.
- Enter the patient weight in kilograms.
- Enter the dextrose concentration as a percentage.
- Enter the ordered infusion rate in mL per hour.
- Set the target and critical GIR values.
- Press calculate to show the result above the form.
- Review calories, fluid load, and target rate guidance.
- Use CSV or PDF buttons to save the report.
Clinical Article
Why Glucose Infusion Rate Matters
Glucose infusion rate is a practical way to describe dextrose delivery. It converts fluid strength, hourly rate, and body weight into one dosing value. This value is usually shown as milligrams per kilogram per minute. It is widely used in neonatal nutrition, pediatric fluids, and parenteral nutrition review.
Understanding the Result
A low value may show inadequate carbohydrate delivery. A high value may increase monitoring needs. The correct target depends on age, diagnosis, metabolic status, and institutional policy. Neonatal patients often need careful review because small rate changes can create large dosing changes. Adult maintenance fluids usually produce lower values because body weight is higher.
Using Dextrose Strength
Dextrose percentage means grams of dextrose in each 100 mL. A 10 percent solution contains 10 grams per 100 mL. The calculator converts that value to milligrams per mL. It then combines the concentration with the hourly pump rate. Weight and minutes are used to normalize the dose.
Fluid and Calorie Review
The calculator also estimates daily volume, mL per kilogram per day, dextrose grams, and carbohydrate calories. These values help compare glucose delivery with total fluid limits. They also help check nutrition plans against energy goals. Dextrose provides 3.4 calories per gram.
Target Rate Planning
Reverse calculations are included for planning. The tool estimates the infusion rate needed for low, high, and midpoint targets. It also estimates the dextrose range needed to meet targets at the current pump rate. These outputs help compare possible adjustments before an order is changed.
Safety Notes
Results should be reviewed with clinical context. Glucose values, insulin use, fluid restrictions, electrolytes, and nutrition goals may all matter. Always follow local policy and confirm calculations for high risk patients. This calculator is for support, documentation, and education only.
Frequently Asked Questions
What is glucose infusion rate?
Glucose infusion rate shows how much dextrose a patient receives each minute, adjusted for body weight. It is reported as mg/kg/min.
Which inputs are required?
You need patient weight, dextrose concentration, and infusion rate. Target values are optional but useful for checking the calculated result.
How is dextrose percentage converted?
Dextrose percentage is multiplied by 10. For example, D10 gives 100 mg/mL because it contains 10 grams per 100 mL.
Can this calculator be used for neonates?
Yes, it can calculate neonatal GIR. Neonatal use needs careful review because small changes in rate or concentration can significantly change dosing.
Does this tool replace clinical judgment?
No. It supports calculation only. Clinical orders should follow local policies, prescriber instructions, pharmacy review, and patient monitoring results.
Why include calories per day?
Dextrose calories help nutrition review. They show how much energy the carbohydrate portion of the infusion provides over 24 hours.
What does above target mean?
Above target means the calculated GIR is higher than your selected range. Review the order, patient condition, and monitoring plan.
Can I export the calculation?
Yes. After submitting the form, use the CSV or PDF buttons. The exported report includes inputs, calculated values, status, and notes.